Ecological restoration method for sulfur-containing mine waste slag pile

A technology of ecological restoration and waste residue, applied in the fields of land preparation methods, botanical equipment and methods, and restoration of polluted soil, etc., can solve the damage to the surrounding environment of the mining area and the health of residents, vegetation restoration is limited to herbs, and it is difficult to restore large areas, etc. problems, to achieve good ecological restoration effects, good social benefits, and low costs

Inactive Publication Date: 2016-09-07
辽宁有色基础工程有限公司
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AI Technical Summary

Problems solved by technology

If these problems are not dealt with early, it will lead to a vicious circle, which will seriously damage the surrounding environment of the mining area and the health of residents.
[0004] At present, for the restoration of abandoned non-ferrous metal mines or heavy metal pollution, it is mainly through organic chemical restoration or physical heat treatment, but the disadvantage is that the input cost is high, it

Method used

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Embodiment Construction

[0017] An ecological restoration method for sulfur-containing mine waste dumps. On the abandoned land of iron sulfide mines, several areas are selected for soil improvement and vegetation restoration. Plow the pile of sulphur-containing mine waste in the project area, the plowing depth is 30cm, and mix the waste residue after 5 months with quicklime, silt, and organic fertilizer; and organic matter content are used alone or mixed after being fully stirred. The quicklime is calcium oxide with a purity of 90%, the silt is the dredged bottom mud of rivers and lakes, and the organic fertilizer is chicken manure.

[0018] The row spacing of Robinia pseudoacacia plants is 2m × 2m, and the row spacing of Amorpha fruticosa plants is 1m × 1m, and arbor-shrub mixed hole planting is carried out, and alfalfa seeds are fully sown. The specifications of the black locust planting holes are 50cm×50cm×50cm, and the specifications of the amorpha planting holes are 30cm×30cm×30cm. For planting...

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Abstract

The invention relates to a restoration method for a mine waste slag pile, specifically to an ecological restoration method for a sulfur-containing mine waste slag pile. The ecological restoration method comprises the following steps: (1) plowing and flatting a waste slag pile, and carrying out natural and full leaching and exposing under the sun; (2) mixing waste slag with quicklime, sludge and an organic fertilizer; (3) planting nitrogen-fixing trees, shrubs and herbaceous plants so as to form a dominant plant community; and (4) allowing pioneer species to evolve, and planting woody trees and shrubs. The ecological restoration method for the sulfur-containing mine waste slag pile provided by the invention can simply and rapidly construct a plant community on the sulfur-containing mine waste slag pile, plants a nitrogen-fixing plant dominant community by utilizing combination of engineering measures and biological measures, promotes reconstruction and evolution of an ecological system in a mine area in the means of natural restoration, restores the stability of the ecological system, thereby achieving the purpose of ecological restoration of a mine.

Description

technical field [0001] The invention relates to a restoration method of a mine waste residue heap, in particular to an ecological restoration method of a sulfur-containing mine waste residue heap. Background technique [0002] In recent years, my country's mine development has developed rapidly, and the status and role of the mining industry in the national economy have risen sharply. As the basic industry of the national economy, the economic contribution of the mining industry has attracted attention. Under the conditions of varying degrees of improvement in our country's living standards, the degree of concern and requirements for our own living environment has increased unprecedentedly. More people are concerned about the environment we live in. At present, we are experiencing an important stage of conflicting challenges between the rapid development of mine economy and the deterioration of mine environment. How to turn abandoned mines into treasures, restore polluted ...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G17/00A01G1/00B09C1/00
CPCA01B79/02A01G17/005A01G22/00B09C1/105B09C2101/00
Inventor 杨辉肖明儒张维正侯永莉田亚光宁方舟吴野张剑张禹李玮尹亮亮刘静曹乐王成李芳
Owner 辽宁有色基础工程有限公司
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